13220021201 has 2 divisors, whose sum is σ = 13220021202. Its totient is φ = 13220021200.

The previous prime is 13220021197. The next prime is 13220021203. The reversal of 13220021201 is 10212002231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12759961600 + 460059601 = 112960^2 + 21449^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220021201 - 2² = 13220021197 is a prime.

Together with 13220021203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13220021203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610010600 + 6610010601.

It is an arithmetic number, because the mean of its divisors is an integer number (6610010601).

Almost surely, 2^13220021201 is an apocalyptic number.

It is an amenable number.

13220021201 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220021201 is an equidigital number, since it uses as much as digits as its factorization.

13220021201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 13220021201 its reverse (10212002231), we get a palindrome (23432023432).

The spelling of 13220021201 in words is "thirteen billion, two hundred twenty million, twenty-one thousand, two hundred one".